Resource exhaustion in Java-Json-Tools Json-Patch
CVE-2026-86319
A vulnerability has been found in java-json-tools json-patch up to 1.13. Affected by this vulnerability is the function JsonPatch.apply of the file src/main/java/com/github/fge/jsonpatch/JsonPatch.java of the component Patch Operation Handler. The manipulation leads to resource consumption. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (52.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Java-Json-Tools Json-Patch — versions 1.0, 1.1, 1.10
Weakness classification (CWE)
References
- vuldb.com/vuln/399510 (technical-description, vdb-entry)
- vuldb.com/vuln/399510/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-86319 (third-party-advisory)
- vuldb.com/submit/908321 (third-party-advisory)
- github.com/java-json-tools/json-patch/issues/167 (issue-tracking, exploit, patch)
- github.com/java-json-tools/json-patch/ (product, patch)
Frequently asked questions
- What is CVE-2026-86319?
- CVE-2026-86319 is a medium-severity vulnerability in Java-Json-Tools Json-Patch, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-09-07.
- How severe is CVE-2026-86319?
- Medium severity. CVSS v3 base score is 5.3 out of 10.